205430444 has 12 divisors (see below), whose sum is σ = 361208568. Its totient is φ = 102228000.

The previous prime is 205430419. The next prime is 205430453. The reversal of 205430444 is 444034502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120857 + ... + 122544.

It is an arithmetic number, because the mean of its divisors is an integer number (30100714).

Almost surely, 2^205430444 is an apocalyptic number.

It is an amenable number.

205430444 is a deficient number, since it is larger than the sum of its proper divisors (155778124).

205430444 is a wasteful number, since it uses less digits than its factorization.

205430444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243616 (or 243614 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 205430444 is about 14332.8449374156. The cubic root of 205430444 is about 590.0492575939.

Adding to 205430444 its reverse (444034502), we get a palindrome (649464946).

The spelling of 205430444 in words is "two hundred five million, four hundred thirty thousand, four hundred forty-four".